# a = 10
# b = 20
# c = 30
# print(b < a < c)
# print(a < b and b < c)
# print(a < b or a > c)
# print(a < b or 10 / 0 == 1)
# a = 0.1
# b = 0.2
# print(not a < b)
# print(not a > b)
# print(a + b == 0.3)
# print(a)
# print(b)
# print(0.3)
# print(a + b)
# print(-0.0001 < 0.3 - a - b < 0.0001)
# x = 'hello'
# y = 'world'
# print(x == y)
# print(x >= y)
# print(y >= x)
# x = '爱三'
# y = '李四'
# print(x == y)
# print(x >= y)
# print(y >= x)

a = 5
b = 0.3
++a
# a += a
print(a // b)
print(a / b)
print(a ** b)
print(a + b)